Peep hole block: in the breast wall, for the observe of flame
Specification of AZS block |
AZS 33 |
AZS 36 |
AZS 41 |
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Chemical analysis |
Al2O3 |
Remain |
Remain |
Remain |
|
ZrO2 |
32-34% |
35-37% |
40-42% |
||
SiO2 |
Less than 16.0% |
Less than 14.0% |
Less than 13.0% |
||
Na2O |
Less than 1.5% |
Less than 1.6% |
Less than 1.3% |
||
Fe2O3+TiO2+CaO+MgO+Na2O+K2O+B2O3 |
Less than 2.5% |
Less than 2.5% |
Less than 2.5% |
||
Bulk density (dense part) |
3.85g/cm3 |
3.95g/cm3 |
4.0g/cm3 |
||
Apparent porosity (dense part) |
Less than 2.0.% |
Less than 1.5.% |
Less than 1.3.% |
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Anti-corrosion rate of glass liquid (soda-lime glass, 1500 Celsius 36h) |
Less than 1.6mm/24h |
Less than 1.5mm/24h |
Less than 1.3mm/24h |
||
Bubbling tendency (soda-lime glass, 1300 Celsius 10h) |
Less than 2.0% |
Less than 1.5% |
Less than 1.0% |
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Exudation temperature of glass phase |
More than 1400 Celsius |
More than 1400 Celsius |
More than 1400 Celsius |
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Volume weight |
Normal casting and tilting casting (RC or TC) |
3.4g/cm3 |
3.45g/cm3 |
3.55g/cm3 |
|
End casting (EC) |
3.6g/cm3 |
3.7g/cm3 |
3.8g/cm3 |
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Void free casting (VF) |
3.8g/cm3 |
3.9g/cm3 |
3.95g/cm3 |